var data = ["../images/media/4.jpg","../images/media/3.jpg","../images/media/2.jpg","../images/media/1.jpg"]
$(function(){
	$(".next").click(function(){
		$(".listImg img").each(function(i,e){
			$(e).attr("src",data[i]);
		})
		data = data.reverse();
	})
})
